set_device_parameter

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden for behavioral disclosure. It mentions that the value 'will be clamped to valid range', which is useful, but omits other important traits like error handling for invalid indices, whether the operation is reversible, or any side effects on playback or device state.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with a one-line purpose and followed by a clear parameter list. Every sentence earns its place; there is no redundant or filler content.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple setter with four parameters, the description covers the basics, but it lacks some contextual details such as how parameter indices are obtained, what valid value ranges are, and behavior on failure. No output schema exists, so the description should provide a bit more context, but it is minimally viable.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has no descriptions (0% coverage), and the description compensates by explaining each parameter's role: track containing the device, device on the track, parameter to set, and new value with clamping. This adds meaningful meaning beyond the bare schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'Set a device parameter value' with a specific verb and resource. It is distinct from sibling tools like get_device_parameters (read) and toggle_device (toggle), though it doesn't explicitly call out these differences.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given on when to use this tool versus alternatives or prerequisites, such as needing to first query device/parameter indices via get_device_parameters. The description simply states what it does without explaining context or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.